WASET
    G. Hodaifa and  J. A. Páez and  C. Agabo and  E. Ramos and  J. C. Gutiérrez and  A. Rosal,  Flocculation on the Treatment of Olive Oil Mill Wastewater: Pretreatment.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2015, vol. 101(5). 645 - 650
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10001929.